P1230 – Fuel Pump Primary Circuit Fault
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Symptoms
- No start
- Intermittent stall
- Long crank time
- Loss of power
- Check engine light
Causes
- Blown fuse
- Open circuit
- Short to ground
- Relay fault
- Wiring damage
Diagnosis
- Check fuses
- Inspect relay
- Check power and ground
- Measure circuit continuity
- Scan for related codes
Repair
- Replace fuse
- Replace relay
- Repair wiring
- Secure connectors
- Repair grounds